Zerby Derby

On a rainy day in Zerby Town Zack and Lily find a stream washing the roads away. When they get to the top of the hill and find where the stream is coming from, Zack, Lily and the Construction Zerbies try to stop it with a dam.

Zack and Rex are playing in the Zerby Town sand pit when they discover a big log. Chase the helicopter is always watching over the Zerbies. Axle the racer wants to join in the race the Construction Zerbies are having. But Rex the dump truck and Fill the front-loader are having a race to see who can carry three heavy logs all the way to the finish line.

Zack and Rex really want to play in the Zerby Town sand pit but it is too small for them both to fit. Zack finds Lily in the middle of the trail, trying to keep Zerbies from running over a flower. Axle, Zack and the Construction Zerbies set out to build the best jump ever. One that lets Axle jump high enough to go over a tree branch and far enough to go over a mud puddle.

Zack and Rex set out to solve the Zerby Town maze - something no other Zerby has ever done. But after driving to the centre of the maze (which is the easy part) they get lost trying to get back out and have to call Chase the helicopter to come help them. But the friends decide to try, try again and set out to solve the maze on their own without the help of Chase.

Rex has built a ditch that goes right through Zerby Town. Zack thinks it's great, but Zerbies might need a way to cross over the ditch so they don't keep falling in, so they set out to make a bridge.

The Construction Zerbies have made a fun table-top obstacle out of a large pile of dirt. But Rex really thinks it could use something else. Zack and Rex set out to build a tunnel through the side, with the help of the other Construction Zerbies.